时频-Radon变换在激光微多普勒效应特征提取中的应用

吴婧; 孙洋; 张骏

时频-Radon变换在激光微多普勒效应特征提取中的应用

烟台大学光电信息学院,山东烟台264005

详细信息

通讯作者:
吴婧(1984-)，女，山东烟台人，硕士研究生，主要从事光电信息获取与处理技术的研究工作。

中图分类号: TN958
计量
- 文章访问数: 3042
- HTML全文浏览量: 140
- PDF下载量: 750
出版历程
- 刊出日期: 2010-09-14

Application of time-frequency Radon transform in feature extraction of laser micro-Doppler effect

Institute of Opto-electronic Information,Yantai University,Yantai 264005,China

摘要

摘要: 鉴于激光微多普勒效应探测运动目标复合振动的重要性，利用离散小波多分辨分析对激光微多普勒效应探测运动目标复合振动的实验数据进行分解，研究不同尺度下的信号特征。将Radon变换与时频分析结合在一起，对实验所得信号在时频域中进行分析，结果表明：时频-Radon变换适合于微多普勒信号的识别，应用该方法能够抑制多分量信号时频分布产生的交叉项干扰，有效地提取微动目标的特征，为目标特征的识别、分类和探测提供了便利。
- 微多普勒效应 /
- Radon变换 /
- 小波变换 /
- 时-频分析 /
- 多震源
Abstract: Since laser micro-Doppler has important applications in detecting the complex vibration of a moving target, discrete wavelet transform multi-resolution analysis is used to represent the experimental data of laser micro-Doppler for detecting complex vibration of moving target to study the signal characteristics at different scales. Radon transforms and time-frequency analysis are combined together to analyze the experimental signal of vibrating target in time-frequency domain. Results show that this method is suitable for recognizing micro-Doppler signal, and it can suppress the cross terms interference produced by the time-frequency distribution of multi-component signals and efficiently extract features of the vibrating target for detection, identification and classification.
- micro-Doppler effect /
- Radon transform /
- wavelet transform /
- time-frequency analysis /
- multiple vibration sources

HTML全文

参考文献(1)

［1］CHEN V C. Micro-Doppler effect of micro-motion dynamics: a review［J］. SPIE,2003,5102:240-249.
［2］CHEN V C, LING H. Time-frequency transforms for radar imaging and signal analysis［M］. Boston: Artech House, Inc., 2002.
［3］LEI Jia-jin,LU Chao. Target classification based on micro-Doppler signatures［J］. IEEE International Radar Conference, 2005,5:179-18.
［4］CHEN V C. Spatial and temporal independent com-ponent analysis of micro-Doppler features［J］. IEEE International Radar Conference, 2005,5:348-353.［5］LI J, LING H. Application of adaptive chirplet re-presentation for ISAR feature extraction from targets with rotating parts［J］. IEEE,2003,150(4):284-291.
［6］GRENEKER E F, GEISHEIMER J L, ASBELL D. Extraction of micro-Doppler data from vehicle targets at x-band frequencies［J］. SPIE,2001,4374:1-9.
［7］王学勤.激光微多普勒效应的仿真与实验研究［D］.烟台：烟台大学,2007.
WANG Xue-qin. The simulating calculation and experimental research of laser micro-Do-ppler effect［D］. YanTai:YanTai University, 2007. (in Chinese)
［8］李建平,唐远炎.小波分析方法的应用［M］.重庆：重庆大学出版社,1999.
LI Jian-ping,TANG Yuan-yan. Application of wavelet analysis［M］. Chongqing: Chongqing University Press, 1999.(in Chinese)
［9］李建平.小波分析与信号处理——理论、应用及软件实现［M］. 重庆：重庆出版社, 1997.
LI Jian-ping. Wavelet analysis and signal pro-cessing——theory, applications and software［M］. Chongqing:Chongqing Press, 1997. (in Chinese)
［10］徐佩霞, 孙功宪. 小波分析与应用实例［M］.合肥：中国科学技术大学出版社, 1996.
XU Pei-xia, SUN Gong-xian. Wavelet analysis and applications［M］. Hefei:University of Science and Technology of China Press, 1996. (in Chinese)
［11］MALLATSG, SIFEN Z. On pattern analysis and machine intelligence［J］. IEEE Trans Information Theory, 1992,14:710-729.
［12］TURNER G. Aliasing in the tau-p transform and the removal of spatially aliased coherent noise［J］. Geophysics,1990,55:1496-1503.
［13］CHEN V C. Applications of rotational time-fre-quency transforms to radar imaging of moving targets［J］. SPIE,2002,4738:241-251.
［14］CHEN V C. Radar detection of multiple moving targets in clutter using time-frequency-radon transform［J］. SPIE, 2002,4723:48-59.

施引文献

资源附件(0)

计量

文章访问数: 3042
HTML全文浏览量: 140
PDF下载量: 750
被引次数: 0

时频-Radon变换在激光微多普勒效应特征提取中的应用

通讯作者:
吴婧(1984-)，女，山东烟台人，硕士研究生，主要从事光电信息获取与处理技术的研究工作。

计量

Application of time-frequency Radon transform in feature extraction of laser micro-Doppler effect

计量

目录

相关数据库

广告合作

友情链接

帮助中心

时频-Radon变换在激光微多普勒效应特征提取中的应用

通讯作者: 吴婧(1984-)，女，山东烟台人，硕士研究生，主要从事光电信息获取与处理技术的研究工作。

计量

出版历程

Application of time-frequency Radon transform in feature extraction of laser micro-Doppler effect

计量

出版历程

目录

相关数据库

广告合作

友情链接

帮助中心

通讯作者:
吴婧(1984-)，女，山东烟台人，硕士研究生，主要从事光电信息获取与处理技术的研究工作。